6.2 Preparation
6.2.1 Selecting cables
Take the following criteria into account when selecting the connecting cables:
● Rated current
● Rated voltage
● If required, service factor
● System-dependent conditions, such as ambient temperature, routing type, cable cross-
section as defined by required length of cable, etc.
● Configuration notes
● Requirements according to IEC/EN 60204‑1
6.2.2 Connect up the ground conductor
The grounding conductor of the motor must be in full conformance with the installation
regulations, e.g. in accordance with IEC/EN 60204-1.
● Connect the ground conductor to the end shield of the motor. There is a fixing lug ① for
the ground conductor at the designated connection point.
– The fixing lug ① is suitable for grounding high-frequency currents using HF ribbon cable
with appropriately formed conductor ends.
● When making connections, ensure the following:
– the connecting surface is bare and protected against corrosion using a suitable
substance, e.g. acid-free Vaseline
– the flat and spring washers are located under the bolt head.
Figure 6-1 Terminal lug ① for the grounding conductor for a force-ventilated motor
Electrical connection
6.2 Preparation
SIMOTICS M-1PH8 1PH818., 1PH822.
68 Operating Instructions 07/2016
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